Feng X, Todd T, Lintzenich CR, Ding J, Carr JJ, Ge Y, Browne JD, Kritchevsky SB, Butler SG. Aging-related geniohyoid muscle atrophy is related to aspiration status in healthy older adults. J Gerontol A Biol Sci Med Sci. 2013 Jul; 68(7):853-60.